How to Complete the Application. Fill out the other side of this application completely.A completed Homestead Exemption Application showing the homestead address. No information is available for this page. Complete the Homestead Declaration form. The form must be printed legibly in black ink. Use Fill to complete blank online HARRIS COUNTY APPRAISAL DISTRICT pdf forms for free. The homestead can't exceed one acre in a city or 160 acres in a rural area. Through the homestead exemption, you may be able to exclude part of your property's value from taxation. Use SmartAsset's tools to better understand the average cost of property taxes in your state and county.